EP 0197270 B1 19890111 - INDUSTRIAL SEWING MACHINE MOTOR
Title (en)
INDUSTRIAL SEWING MACHINE MOTOR
Publication
Application
Priority
DE 3508227 A 19850308
Abstract (en)
[origin: US4709794A] An electromotive variable-speed and control drive particularly for use in industrial sewing machines and comprising a coupling coil casing radially surrounding a coupling-brake disk and a brake coil casing radially relocated towards the center. Both are positioned in the brake end shield. In order to avoid a sticking of the coupling-brake disk with high alternations and a delay of the break-down and build-up of the magnetic fields, a brake coil casing has been relocated radially so near to the center that it is situated within the brake pad in front of the armature ring. On the other hand, there is an undercut and a recess at the coupling coil casing and a recess at the disk flywheel which assures that no axial forces can occur at the radial gaps.
IPC 1-7
IPC 8 full level
D05B 69/12 (2006.01); D05B 69/22 (2006.01); F16D 67/06 (2006.01); H02K 7/112 (2006.01)
CPC (source: EP KR US)
D05B 69/00 (2013.01 - KR); D05B 69/125 (2013.01 - EP US); F16D 67/06 (2013.01 - EP US); H02K 7/112 (2013.01 - KR); H02K 7/1125 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE CH DE FR GB IT LI NL SE
DOCDB simple family (publication)
US 4709794 A 19871201; AT E39954 T1 19890115; BR 8600999 A 19861118; DE 3508227 C1 19860605; DE 3661743 D1 19890216; EP 0197270 A1 19861015; EP 0197270 B1 19890111; ES 292773 U 19860616; ES 292773 Y 19870301; JP S61251447 A 19861108; KR 860009176 A 19861220
DOCDB simple family (application)
US 83625886 A 19860305; AT 86102239 T 19860220; BR 8600999 A 19860307; DE 3508227 A 19850308; DE 3661743 T 19860220; EP 86102239 A 19860220; ES 292773 U 19860306; JP 4873486 A 19860307; KR 860001643 A 19860308